Failing test suite with mercurial 3.8.3

[DimStar77]

While running hg-git's test suite against mercurial 3.8.3 the following failure occurred (master on curret git master):

[ 50s] # Running sh "/tmp/hgtests.UDcksN/child12/test-subrepos.t.sh"
[ 52s] # Ret was: False
[ 52s]
[ 52s] --- /home/abuild/rpmbuild/BUILD/hg-git-0.8.5/tests/test-subrepos.t
[ 52s] +++ /home/abuild/rpmbuild/BUILD/hg-git-0.8.5/tests/test-subrepos.t.err
[ 52s] @@ -16,11 +16,11 @@
[ 52s] $ git add alpha
[ 52s] $ fn_git_commit -m 'add alpha'
[ 52s] $ git submodule add ../gitsubrepo subrepo1
[ 52s] - Cloning into 'subrepo1'...
[ 52s] + Cloning into '$TESTTMP/gitrepo1/subrepo1'...
[ 52s] done.
[ 52s] $ fn_git_commit -m 'add subrepo1'
[ 52s] $ git submodule add ../gitsubrepo xyz/subrepo2
[ 52s] - Cloning into 'xyz/subrepo2'...
[ 52s] + Cloning into '$TESTTMP/gitrepo1/xyz/subrepo2'...
[ 52s] done.
[ 52s] $ fn_git_commit -m 'add subrepo2'
[ 52s] we are going to push to this repo from our hg clone,